4.5.2.2/3 the brain and eye (SINGLE) Flashcards

1
Q

The largest part of the brain is called the…

A

Cerebrum

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2
Q

The outer part of the cerebrum is called the…

A

Cerebral Cortex

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3
Q

The cerebellum co-ordinates..

A

..muscle movement

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4
Q

The medulla oblongata controls…

A

..unconscious activities (eg heart rate, breathing rate)

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5
Q

The function of the temporal lobe is…

A

..to provide visual memories and process language

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6
Q

Broca (1824-1880) is best known for his work on which part of the brain?

A

Frontal Lobe

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7
Q

Which part of the eye contains the light sensitive receptors?

A

Retina

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8
Q

Name the receptor cells that can detect low levels of light

A

Rods

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9
Q

Name the receptor cells that allow colour vision

A

Cones

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10
Q

Name the receptor cells that allow clear daytime vision

A

Cones

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11
Q

At night, colour vision is less vivid because which receptor is not stimulated?

A

Cones

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12
Q

Name the tough outer skin of the eye

A

Sclera

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13
Q

Name the curved front part of the eye ball that refracts light through the pupil

A

Cornea

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14
Q

What is ‘accommodation’

A

The lens changing shape to focus on near or far objects

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15
Q

Focussing on far objects:

Your ciliary muscles (contract/relax)?

A

RELAX!

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16
Q

Focussing on far objects:

Your lens is (long and thin/short and fat)

A

Longer and thinner

17
Q

Focussing on near objects:

Your ciliary muscles (contract/relax)?

18
Q

Focussing on near objects:

Your lens is (long and thin/short and fat)

A

Shorter and fatter

19
Q

Long sightedness is otherwise known as..

A

..HYPEROPIA

20
Q

Short sightedness is otherwise known as,,

21
Q

If you are long sighted, what can you not see very well

A

Objects that are close to you

22
Q

If you are short sighted, what can you not see very well

A

Objects that are far from you

23
Q

What is the function of the optic nerve

A

Transmits electrical impulses from the eyes to the brain

24
Q

Name the layer of the eye that provides oxygen and nourishment to the retina cells

25
Which part of the eye controls the size of the pupil
Iris
26
Which part of the retina provides the sharpest vision (has the highest number of cones) when light hits it
Fovea
27
This structure is made of muscle so contracts and relaxes to change the shape of the lens
Ciliary Body
28
Correctives spectacles or lens treat long and short sightedness by doing what?
Refracting light before it enters our eyes
29
Name a permanent solution to treating long or short sightedness
Laser surgery (to change the shape of the cornea)